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- Hanssen, R.F. (author) patent 2015
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Root, B.C. (author), Hanssen, R.F. (author), Vermeersen, L.L.A. (author), Munnik, M.E. (author), Vlijm, Rozemarijn (author)In November 1934, Den Helder, The Netherlands, the start of a remarkable voyage commenced. The Hr. Ms.K-XVIII, a Dutch submarine, was about to set sail to Soerabaya, Indonesia. Onboard was a Dutch professor, Felix Andries Vening Meinesz. He was able to measure the Earth’s gravity field with similar precision as on land for the first time in...abstract 2015
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Terwel, K.C. (author), Hanssen, R.F. (author), Waning, H (author)Radar interferometry is a technique which can observe the earth’s surface during day and night time. It makes uses of thousands of pulses per second that are transmitted by satellites and reflected by the surface of, for instance, structures. By analyzing the data it is possible to measure displacements of the surface within millimeter precision...conference paper 2015
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Fuhrmann, T. (author), Cuenca, M. Caro (author), Knöpfler, A. (author), van Leijen, F.J. (author), Mayer, M. (author), Westerhaus, M. (author), Hanssen, R.F. (author), Heck, B (author)The three geodetic techniques InSAR, levelling and GNSS are complementary w.r.t. (i) the sensitivity to horizontal and vertical displacement components, (ii) the spatial and temporal resolution of the measurements and (iii) the accuracy of the resulting displacements. We present a strategy to robustly combine the displacement estimates of the...conference paper 2015
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Ruiz-Armenteros, Antonio M. (author), Delgado, J. Manuel (author), Sousa, Joaquim J. (author), Hanssen, R.F. (author), Caro, Miguel (author), Gil, Antonio J. (author), Galindo-Zaldivar, Jesús (author), Sanz de Galdeano, Carlos (author)The Betic-Rif cordilleras are build-up in the western Mediterranean by the deformations related to the Eurasian-African plate boundary. The recent NW-SE convergence produces the simultaneous development of large folds and faults in the central part of the Internal Zones of the Betic Cordilleras, which continues active up to Present. The uplift...conference paper 2015
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Sousa, J.J. (author), Ruiz, A.M. (author), Hooper, A.J. (author), Hanssen, R.F. (author), Perski, Z. (author), Bastos, L.C. (author), Gil, A.J. (author), Galindo-Zaldivar, J. (author), Sanz de Galdeano, C. (author), Alfaro, P. (author), Garrido, M.S. (author), Armenteros, J.A. (author), Gimenez, E. (author), Aviles, M. (author)The quantification of low rate active tectonic structures is a major target of geodetic and geological studies to improve the knowledge of seismic hazards. The central Betic Cordillera (southern Spain) is affected by moderately active tectonic structures and seismicity. Part of this seismic activity is produced by several NW-SE normal faults...journal article 2014
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Kiseleva, E. (author), Mikhailov, V. (author), Smolyaninova, E. (author), Dmitriev, P. (author), Golubev, V. (author), Timoshkina, E. (author), Hooper, A. (author), Samiei-Esfahany, S. (author), Hanssen, R.F. (author)The landslide activity in the area of Bolshoy Sochi (Big Sochi) situated at the Black Sea coast of the Great Caucasus has been studied using the StaMPS PS-InSAR method. We incorporated three sets of radar images from the satellites with different wavelengths ALOS, Envisat and Terra-SAR-X from both ascending and descending tracks which cover the...journal article 2014
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Tufekci, N. (author), Schoups, G.H.W. (author), Mahapatra, P.S. (author), Van de Giesen, N.C. (author), Hanssen, R.F. (author)The Tazerbo well field is one of the well fields designed within the Great Man-Made River Project (GMMRP), which aims to deliver water to the eastern coast of Libya through an underground pipe network. It consists of 108 wells in three rows, where the wells are separated 1.3 km in longitude and 10 km in latitude. The planned total groundwater...journal article 2014
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- Dheenathayalan, P. (author), Small, D. (author), Hanssen, R.F. (author) conference paper 2014
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Hoogeboom, P. (author), Hanssen, R.F. (author), Pastena, Max (author), Imbembo, Ernesto (author), van Duijn, Pieter (author), Otten, Matern (author), Monni, Stefania (author)In The Netherlands a demonstration small SAR instrument mission is prepared under the ESA Prodex program. Its launch is expected in 2017. The overall objective of this project is to demonstrate an alternative means to systematically assess the structural health of large volumes of infrastructure (built environment), in order to avoid hazardous...conference paper 2014
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van Leijen, F.J. (author), Iannini, L. (author), Maljaars, Hanno (author), Hanssen, R.F. (author), Caro Cuenca, Miguel (author), Wenhao, Wu (author), Aguilera, Esteban (author)Part of Session 3 - Sentinel-1 TOPS InSAR resultsother 2014
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Martins, Joana E. (author), Hooper, Andy (author), Ruigrok, E.N. (author), Draganov, D.S. (author), Hanssen, R.F. (author), White, Robert (author), Soosalu, Heidi (author)Torfajökull is the largest silicic volcanic centre in Iceland lying at the intersection of the rift zone (MidAtlantic Ridge) and the transform zone that connects to Reykjanes peninsula. It erupts infrequently,with only two eruptions in the last 1200 years, the latest of which was over 5 centuries ago. Yet, itsactive tectonic setting, persistent...abstract 2014
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Iannini, L. (author), Molijn, R.A. (author), Hanssen, R.F. (author)The paper debates the impact of sensor configuration diversity on the crop classification performance. More specifically, the analysis accounts for multi-temporal and polarimetric C-Band SAR information used individually and in synergy with Multispectral imagery. The dataset used for the investigation comprises several multi-angle Radarsat-2 ...conference paper 2013
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Van Zwieten, G.J. (author), Hanssen, R.F. (author), Gutiérrez, M.A. (author)Tectonic faults are commonly modeled as Volterra or Somigliana dislocations in an elastic medium. Over the years, many practical solutionmethods have been developed for problems of this type. This work presents a concise overview in consistent mathematical notation of the most prominent of these methods, emphasizing what the various methods have...journal article 2013
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Bähr, H. (author), Hanssen, R.F. (author)An approach to improve orbital state vectors by orbit error estimates derived from residual phase patterns in synthetic aperture radar interferograms is presented. For individual interferograms, an error representation by two parameters is motivated: the baseline error in cross-range and the rate of change of the baseline error in range. For...journal article 2012
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Arikan, M. (author), Hooper, A.J. (author), Hanssen, R.F. (author)Interseismic tectonic motion manifests itself as a long (10’s to 100’s km) wavelength signal. The magnitude and the extent of the signal is crucial to understand kinematics of the crustal motion. For two decades, GPS measurements have been the main source of information for observing such a signal. In this study we use Persistent Scatterer...conference paper 2010
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Lindenbergh, R.C. (author), Liu, S. (author), Hanssen, R. (author), De Haan, S. (author), Van der Marel, H. (author)High spatial resolution integrated water vapor (IWV) estimates are available from the MERIS spectrometer on board of Envisat. Unfortunately cloud cover results in loss of a large amount of MERIS IWV pixels. Here methods are presented for filling cloud gaps in MERIS IWV scenes, first, by directly interpolating remaining pixels not affected by...conference paper 2009
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- de Lange, Ger (author), van der Velden, WHJ (author), Kopinga, J (author), Hanssen, R.F. (author), Marinkovic, P (author), Buma, J.T. (author), Goorden, N (author), Bakker, MAJ (author) report 2009
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Nitti, D.O. (author), Hanssen, R.F. (author), recife, A. (author), Bovenga, F. (author), Milillo, G. (author), Nutricato, R. (author)Image alignment is without doubt the most crucial step in SAR Interferometry. Interferogram formation requires images to be coregistered with an accuracy of better than 1/8 pixel to avoid significant loss of phase coherence. Conventional interferometric precise coregistration methods for full-resolution SAR data (Single-Look Complex imagery, or...conference paper 2008
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- Hanssen, R.F. (author) public lecture 2008